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BAE System launches parallel propulsion system for trucks

ABR Staff Writer Published 09 March 2011

BAE Systems has launched its parallel hybrid green propulsion system for heavy-duty truck applications at the National Truck Equipment Association Work Truck Show in Indianapolis, US.

The parallel system, designed for Class 6, 7, and 8 vocational trucks, is the latest version of the company's HybriDrive green propulsion system.

The HybriDrive parallel system is designed to address the needs of vehicles with duty cycles that require higher operating speeds and less frequent stops.

HybriDrive series and parallel technologies use simplified and proven components and controls to deliver their capabilities. While the series system does not use a transmission, the HybriDrive parallel system is based on a single electric machine integrated between the engine and the transmission.

The system can be installed with minimal impact to the vehicle, and enhances propulsion through an optimized blending of internal combustion engine power and electric power. The system's energy management and control capabilities ensure all energy flow ? such as propulsion and recuperation ? occurs in a highly efficient fashion, resulting in lower fuel consumption and reduced emissions.

The HybriDrive parallel systems' power and torque ratings range from 95 horsepower (Hp) to 145 Hp and 300 lbs-ft 400 -lbs-ft. The system is designed to support large bore heavy duty power plants ranging from 350 Hp to 600 Hp, with associated torque ratings of 750 lbs-ft to 2,150 lbs-ft.

The HybriDrive series propulsion system -- currently in service on more than 3,000 transit buses in cities around the world meets the demands of urban transit duty cycles, which require low average speeds and frequent stop-and-go operation.

Steve Trichka, the vice president of power and energy management for BAE Systems said, "Vocational truck fleets that transition to our heavy-duty HybriDrive system will experience fuel savings not before seen in these truck classes,"

"Our HybriDrive parallel system is the optimal hybrid electric solution for vehicles that operate in diverse duty cycles beyond standard urban operational modes."

The HybriDrive parallel system, in final stages of development, will see it first road trials this spring and is expected to be deployed in markets around the world in 2012.